Javascript 在javascript中计算两个输入字段值
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calculate two input field values in javascript
提问by Justin Jose
Hi i want to calculate two input field values and result will show in third input field so i want to write code in ajax page
嗨，我想计算两个输入字段值，结果将显示在第三个输入字段中，所以我想在 ajax 页面中编写代码
<input id="a1" type="text" />
<input id="a2" type="text" onblur="Calculate();" />
<input id="a3" type="text" name="total_amt" value="" />
here javascript function
这里 javascript 函数
<script>
function Calculate()
{
var resources = document.getElementById('a1').value;
var minutes = document.getElementById('a2').value;
document.getElementById('a3').value=parseInt(resources) * parseInt(minutes);
document.form1.submit();
}
</script>
starting its working but nw its not working please help me
开始工作但不工作请帮助我
Thanks in Advance
提前致谢
回答by Maybe Gordon
Look this! Work it. http://jsfiddle.net/op1u4ht7/2/
看看这个！解决它。 http://jsfiddle.net/op1u4ht7/2/
<input id="a1" type="text" />
<input id="a2" type="text" onblur="calculate()" />
<input id="a3" type="text" name="total_amt" />
calculate = function()
{
var resources = document.getElementById('a1').value;
var minutes = document.getElementById('a2').value;
document.getElementById('a3').value = parseInt(resources)*parseInt(minutes);
}
回答by Justin Jose
Try AutoCalculator https://github.com/JavscriptLab/autocalculateCalculate Inputs value and Output By using selector expressions
尝试 AutoCalculator https://github.com/JavscriptLab/autocalculate使用选择器表达式计算输入值和输出
Just add an attribute for your output input like data-ac="(#firstinput+#secondinput)"
只需为您的输出输入添加一个属性，例如 data-ac="(#firstinput+#secondinput)"
No Need of any initialization just add data-ac attribute only. It will find out dynamically added elements automatically
无需任何初始化，只需添加 data-ac 属性即可。它会自动找出动态添加的元素
FOr add 'Rs' with Output just add inside curly bracket data-ac="{Rs}(#firstinput+#secondinput)"
For add 'Rs' with Output 只需在大括号内添加 data-ac="{Rs}(#firstinput+#secondinput)"
